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Finding the Fourth Proportional to 251,665.02, 347,297.58 and 138,487.77

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Solution

The fourth proportional to 251,665.02, 347,297.58 and 138,487.77 is: 191,113.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,665.02 : 347,297.58 = 138,487.77 : x
  2. Step 2: Convert to fraction form
    251,665.02/347,297.58 = 138,487.77/x
  3. Step 3: Cross multiply
    251,665.02x = 347,297.58 × 138,487.77
  4. Step 4: Simplify right side
    251,665.02x = 48,096,467,380.60
  5. Step 5: Solve for x
    x = 48,096,467,380.60/251,665.02
  6. Step 6: Final answer
    x = 191,113.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.